The webcam is not detected

Hi
The problem is that when I run jmfinit and it tried to see if there are any webcams, then my logitech quickcam pro 4000 is not found. Actually it seems to see it, but the camera light flashes on and off all the time, and at the same time the face tracing dialog also flashes. It goes on like that for a while until I interrupts it doing CTRL-C. At which point it stops and gives me an error, see below.
From what I can understand, it actually finds it and then it fails to talk to it, but that it very strange since I've seen others here post that they are using their logitech webcams without any problems.
So does anyone have any ideas on how I can move forward, this is so puzzling. So any ideas are welcome.
I have just installed JMF, paths and classpaths are set, and I'm using the windows performance download.
Regards
Tobias
This is the output from the jmfinit executable
C:\Program Files\JMF2.1.1e\bin>jmfinit
DirectSound Capture Supported = true
DirectSoundAuto: Committed ok
JavaSound Capture Supported = true
JavaSoundAuto: Committed ok
Found device Microsoft WDM Image Capture (Win32)
Querying device. Please wait...
^C
C:\Program Files\JMF2.1.1e\bin>
# An unexpected error has been detected by HotSpot Virtual Machine:
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x7f842adf, pid=3812, tid=1508
# Java VM: Java HotSpot(TM) Client VM (1.5.0_02-b09 mixed mode, sharing)
# Problematic frame:
# C [lvcodec2.dll+0x2adf]
# An error report file with more information is saved as hs_err_pid3812.log
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
#

Funny thing is that I think I allready had rebooted the machine, but today some 18 hours or so later, after a reboot this morning it worked just fine.

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